[NonGNU ELPA] Free-Keys version 1.0

[ELPA update]

Version 1.0 of package Free-Keys has just been released in NonGNU ELPA.
You can now find it in M-x list-packages RET.

Free-Keys describes itself as:

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  Show free keybindings for modkeys or prefixes
  =============================================

More at https://elpa.nongnu.org/nongnu/free-keys.html

## Summary:

  Show free keybindings for modkeys or prefixes. Based on code
  located here: https://gist.github.com/bjorne/3796607

## Recent NEWS:

[Not provided 🙁]